Skip to main content

@fastly/js-compute

4.0.0
4.0.0-pre.0
3.46.0
3.45.1
3.45.0
3.44.3
3.43.1
3.43.0
3.42.1
3.42.0
3.41.2
3.41.0
3.40.1
3.40.0
3.39.3
3.39.2
3.39.1
3.39.0
3.38.4
2.5.0
1.13.0

Fastly Developer Hub Code Examples Fastly Fiddle

JavaScript for Fastly Compute
Migrating from v2 to v3
fastly:acl
fastly:backend
fastly:cache
fastly:cache-override
fastly:compute
fastly:config-store
fastly:device
fastly:dictionary
fastly:edge-rate-limiter
fastly:env
fastly:experimental
fastly:fanout
fastly:geolocation
fastly:html-rewriter
- Element
  - prototype
- HTMLRewritingStream()
fastly:image-optimizer
fastly:kv-store
fastly:logger
fastly:secret-store
fastly:security
fastly:shielding
fastly:websocket
globals

fastly:html-rewriter
Element
prototype
selector

Version: 4.0.0

selector

The selector read-only property is a string representing the CSS selector that matches the element.

Copyright © 2026 Fastly Inc. All rights reserved. Portions of this content are ©1998–2023 by individual mozilla.org contributors. Content available under a CC-BY-SA 2.5 license.